Diethyl 2-(2-methylpropylidene)malonate CAS 5652-68-6

Purity 97%+In StockPharmaceutical Standards
CAS No.5652-68-6
Molecular FormulaC11H18O4
Molecular Weight214.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diethyl 2-(2-methylpropylidene)malonate CAS 5652-68-6 chemical structure

Description

CATO supplies Diethyl 2-(2-methylpropylidene)malonate (CAS 5652-68-6), a certified reference material (molecular formula C11H18O4, MW 214.26 g/mol) for analytical method development and quality control.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Diethyl 2-(2-methylpropylidene)malonate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 214.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), Diethyl 2-(2-methylpropylidene)malonate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC11H18O4
Molecular Weight214.26 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958

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